Vacuum package method        Vacuum package device is able to "seal" the products in a "vacuum" space. The methods are as shown below.   What is vacuum?      Normally, the word vacuum means removal of all air contents. However, when it comes to food storage, it means      removal of all oxygen.      Food degradation starts from degradation process ofbsp microorganisms.Active colonies of microorganisms willlead      to degradation and oxidation of food products. During the degradation process, microorganisms  require oxygen      in order to create energy for their degradation process. By effectively removing the oxygen,vacuum state prevents food      from degrading and changing even after long term storage.      Therefore, vacuum packaging that effectively removes oxygen from the container are widely used throughout the market.   How to create a bag using vacuum package roll.   How to use the vacuum packaging device (Vacuum time may differ based on the size)